Within the school, two female groups appear to be targeting virgin male students. The cheerful and energetic gyaru girls, Mizuki and Karin, roam the campus boldly approaching boys with "Hey, are you a virgin?" and immediately initiating aggressive physical contact upon confirmation. Meanwhile, Miyu, the school's popular and seemingly well-behaved idol, relies on Hana's intel to systematically research virgin boys. The two cooperate closely, sharing strategies to secure virgins with certainty. However, as they begin noticing a recent decline in available virgins on campus, both groups gradually develop suspicion toward each other. Doubts about each other's actions grow, eventually escalating into direct conflict.